SQL Server Multi Server Administration

By bradyupton in SQL Server Agent 0 Comment

I seem to notice a lot of people do not use or even know about Multi Server Administration for their SQL Server Agent Jobs and Maintenance Plans. Multi Server Administration can be really useful when you need to create and run the same jobs or maintenance plans across numerous SQL Server instances. Let’s walk through setting up Multi Server Administration for SQL Server.

Here’s a basic look at how to setup Multi Server Administration. My environment has two separate VM’s running in VM Workstation with Windows 2008 R2 Datacenter Edition and SQL Server 2008 R2 Enterprise named Principal and Mirror.

First thing I’m going to do is register both servers in SQL Server Management Studio (SSMS). If you do not see the Registered Servers tab in SSMS navigate to ‘View’ | ‘Registered Servers’ or press ‘Ctrl + Alt + G’.

SQL Freelancer Multi Server AdministrationOnce both servers are registered I can start configuring Multi Server Administration. To do this right click on ‘SQL Server Agent’ on your master server and choose ‘Multi Server Administration’ | ‘Make this a Master…’ to begin the process.

SQL Freelancer Multi Server Administration

Click Next on the Welcome for the Master Server Wizard.

The next screen is where we can configure an operator. Just like when we create an operator for local jobs, we can create one for our Multi Server jobs. You can also leave this section blank if you prefer not to have an operator although I would not recommended this practice. Once completed, press the ‘Next’ button to continue.

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SQL Server performance tuning for each layer of an application

By bradyupton in Performance Tuning 0 Comment

Performance tuning is a big subject and there are a lot of different pieces to troubleshooting a poor performing database or application. I like to use the 5 level process shown below:

  1. Server Hardware
  2. Operating System
  3. SQL Server
  4. Database
  5. Application

SQL Freelancer SQL Server Performance Tuning

Hardware

When troubleshooting poor performance don’t always assume it’s something wrong with the database itself. The problem often lies deeper. We’ll start with hardware. If the hardware isn’t up to par, your OS, database, and application will suffer.

One of the best tools to monitor hardware are counters that are part of the Performance Monitor, or PerfMon for short. I’m not going to go into how to use PerfMon, which can be covered in a different tip, but I will tell you some of the most important counters to watch and a description of what they do.

Network Counters:

  • Network Interface: Bytes Total/sec – Bytes Total/sec is the rate at which bytes are sent and received over each network adapter, including framing characters. Network Interface\Bytes Total/sec is a sum of Network Interface\Bytes Received/sec and Network Interface\Bytes Sent/sec. This value should be pretty low.
  • Network Interface: Output Queue Length -Output Queue Length is the length of the output packet queue (in packets). If this is longer than two, there are delays and the bottleneck should be found and eliminated, if possible. Since the requests are queued by the Network Driver Interface Specification (NDIS) in this implementation, this should always be 0.
  • Network Interface: Packets Outbound Errors – Packets Outbound Errors is the number of outbound packets that could not be transmitted because of errors. This value should stay at 0 also.

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Configure SQL Server Database Mirroring Using SSMS

By bradyupton in Database Mirroring, High Availability 0 Comment

In this post I am going to outline my environment and then walk through the process of setting up Database Mirroring.  This will include the configurations, backups, restores and verification process.  Let’s jump in.

My test environment consists of two separate VM’s running VM Workstation with Windows 2008 R2 Datacenter Edition and SQL Server 2008 R2 Enterprise named appropriately Principal and Mirror. The SQL Server and SQL Server Agent Services accounts are running as domain users (DOMAIN\User). Windows Firewall is OFF for the sake of this example.

I created a database on the Principal SQL Server instance and named it TestMirror. The recovery model is set to FULL RECOVERY.

SQL Freelancer Multi Server Administration

1st step: Issue a full backup of the database.

BACKUP DATABASE TestMirror TO DISK = 'C:\Program Files\Microsoft SQL 
Server\MSSQL10_50.MSSQLSERVER\MSSQL\Backup\Backup.bak';

2nd step: Issue a transaction log backup of the database.

BACKUP LOG TestMirror TO DISK = 'C:\Program Files\Microsoft SQL 
Server\MSSQL10_50.MSSQLSERVER\MSSQL\Backup\Backup.trn';

Below are the two files in the file system:

SQL Freelancer Configure SQL Server Database Mirroring
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